21049918344

Names of 21049918344

• Cardinal: 21049918344 can be written as Twenty-one billion, forty-nine million, nine hundred eighteen thousand, three hundred forty-four.

Scientific notation

• Scientific notation: 2.1049918344 × 10¹⁰

Factors of 21049918344

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2894

Divisors of 21049918344

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 18 21 24 26 28 31 36 37 39 42 52 56 62 63 72 74 78 84 91 93 104 111 117 124 126 148 156 168 182 186 217 222 234 248 252 259 273 279 296 312 333 364 372 403 434 444 468 481 504 518 546 558 651 666 728 744 777 806 819 868 888 936 962 1036 1092 1116 1147 1209 1302 1332 1443 1554 1612 1638 1736 1924 1953 2072 2184 2232 2294 2331 2418 2604 2664 2801 2821 2886 3108 3224 3276 3367 3441 3627 3848 3906 4329 4588 4662 4836 5208 5602 5642 5772 6216 6552 6734 6882 7254 7812 8029 8403 8463 8658 9176 9324 9672 10101 10323 11204 11284 11544 13468 13764 14508 14911 15624 16058 16806 16926 17316 18648 19607 20202 20646 22408 22568 24087 25209 25389 26936 27528 29016 29822 30303 32116 33612 33852 34632 36413 39214 40404 41292 44733 48174 50418 50778 58821 59644 60606 64232 67224 67704 72261 72826 78428 80808 82584 86831 89466 96348 100836 101556 103637 104377 109239 117642 119288 121212 134199 144522 145652 156856 173662 176463 178932 192696 201672 203112 207274 208754 218478 235284 242424 254891 260493 268398 289044 291304 310911 313131 327717 347324 352926 357864 414548 417508 436956 470568 509782 520986 536796 578088 607817 621822 626262 655434 694648 705852 725459 764673 781479 829096 835016 873912 932733 939393 1019564 1041972 1073592 1128803 1215634 1243644 1252524 1310868 1347281 1411704 1450918 1529346 1562958 1823451 1865466 1878786 2039128 2083944 2176377 2257606 2294019 2431268 2487288 2505048 2621736 2694562 2901836 3058692 3125916 3212747 3386409 3646902 3730932 3757572 4041843 4352754 4515212 4588038 4862536 5389124 5470353 5803672 6117384 6251832 6425494 6529131 6772818 7293804 7461864 7515144 7901621 8083686 8705508 9030424 9176076 9430967 9638241 10159227 10778248 10940706 12125529 12850988 13058262 13545636 14587608 15803242 16167372 17411016 18352152 18861934 19276482 20318454 21881412 22489229 23704863 24251058 25701976 26116524 27091272 28292901 28914723 31606484 32334744 37723868 38552964 40636908 41765711 43762824 44978458 47409726 48502116 52233048 56585802 57829446 63212968 67467687 71114589 75447736 77105928 81273816 83531422 84878703 89956916 94819452 97004232 113171604 115658892 125297133 134935374 142229178 167062844 169757406 179913832 189638904 202403061 226343208 231317784 250594266 269870748 284458356 292359977 334125688 339514812 375891399 404806122 501188532 539741496 568916712 584719954 679029624 751782798 809612244 877079931 1002377064 1169439908 1503565596 1619224488 1754159862 2338879816 2631239793 3007131192 3508319724 5262479586 7016639448 10524959172 21049918344
• Sum of all divisors σ(n): 74413946880
• Sum of proper divisors (its aliquot sum) s(n): 53364028536
• 21049918344 is an abundant number, because the sum of its proper divisors (53364028536) is greater than itself. Its abundance is 32314110192

Bases of 21049918344

• Binary: 10011100110101011000100001110001000₂
• Hexadecimal: 0x4E6AC4388
• Base-36: 9O4KSY0

Squares and roots of 21049918344

• 21049918344 squared (21049918344²) is 443099062289067702336
• 21049918344 cubed (21049918344³) is 9327199079487844858060498051584
• The square root of 21049918344 is 145085.8998800363
• The cube root of 21049918344 is 2761.1084929869

Scales and comparisons

• 21,049,918,344 seconds is equal to 669 years, 16 weeks, 5 days, 7 hours, 32 minutes, 24 seconds.
• To count from 1 to 21,049,918,344 would take you about one thousand, three hundred thirty-eight years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 21049918344 cubic inches would be around 230.1 feet tall.

Recreational maths with 21049918344

• 21049918344 backwards is 44381994012
• The number of decimal digits it has is: 11
• The sum of 21049918344's digits is 45
• More coming soon!